71413105214261 has 4 divisors (see below), whose sum is σ = 71419921403532. Its totient is φ = 71406289024992.

The previous prime is 71413105214239. The next prime is 71413105214263. The reversal of 71413105214261 is 16241250131417.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37092899075236 + 34320206139025 = 6090394^2 + 5858345^2 .

It is a cyclic number.

It is not a de Polignac number, because 71413105214261 - 2¹⁰ = 71413105213237 is a prime.

It is a super-2 number, since 2×71413105214261² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71413105214263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3408078920 + ... + 3408099873.

It is an arithmetic number, because the mean of its divisors is an integer number (17854980350883).

Almost surely, 2^{71413105214261} is an apocalyptic number.

It is an amenable number.

71413105214261 is a deficient number, since it is larger than the sum of its proper divisors (6816189271).

71413105214261 is a wasteful number, since it uses less digits than its factorization.

71413105214261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6816189270.

The product of its (nonzero) digits is 40320, while the sum is 38.

Adding to 71413105214261 its reverse (16241250131417), we get a palindrome (87654355345678).

The spelling of 71413105214261 in words is "seventy-one trillion, four hundred thirteen billion, one hundred five million, two hundred fourteen thousand, two hundred sixty-one".